Hi guys!I only unlocked this game to let you know that there is STILL a method to get diamonds on this game.
Follow this video, it's in spanish/portugues but you don't need to understand the language to do this.
Bassicaly what you need to do is: download the game from description and
Lucky Patcher then install them after that go into the game and buy the diamonds packet, it will not add gems but the other currencie to the game but with them you can exchange them for diamonds...I don't know if there is a limit at how many diamonds you can get, but I have right now 25k and everything is workin...Also I don't know if you can log in to facebook to save your progress... I will try that later and let you know.
Just so you know if you have a Xiaomi phone this will not work, I don't know why,So i reccomend if you have a Xiaomi phone to do this on PC on a emulator.
(If this is not allowed PM me and I delete this comment, I'm just trying to help people out)